신두리 지역의 전사구(前砂丘)에 대한 OSL 연대 측정 및 지형 발달

The Development and Luminescence Chronology of a Coastal Dune from the Shindu Dunefield, T′aean Peninsula

  • Munyikwa Kennedy (Dept. of Geography Education, Seoul National University) ;
  • Jong-Wook Kim (Dept. of Geography Education, Seoul National University) ;
  • Jeong-Heon Choi (Korea Basic Science Institute, Isotope Research Group, Division of Nano-Material and Environmental Science) ;
  • Kwang-Hee Choi (Dept. of Geography Education, Seoul National University) ;
  • Jong-Min Byun (Dept. of Geography Education, Seoul National University)
  • 발행 : 2004.06.01

초록

태안반도 신두리 일대에 분포하는 전사구 퇴적물에 대한 OSL 연대측정결과, 조사 지점에서의 사구사 퇴적은 대략 500-600년 전에 시작되었다. 이후 사구층 하부는 안정상태를 유지했으나, 상부(지표에서 1cm)의 연대가 약 30년전인 것으로 보아 1970년대 이후 재퇴적되었을 것으로 추정된다. 한편, 사구 표면으로부터 3.5m와 2m 깊이에서 채취한 두 개의 시료는 50-70년 정도의 연대차이가 있다. 이에 의하면 사구사의 순 퇴적율은 연간 약 2.5cm로 추정되는데, 이는 해안사구로서는 비교적 느린 것이다. 본 조사에서 연대를 추정한 사구사 퇴적층은 1개 시점에 불과하지만, 이를 토대로 볼 때, 지난 1,000년간 상당한 양의 사구사가 퇴적되었거나 재이동되었음을 알 수 있다. 이러한 사실은 사구가 홀로세(Holocene) 동안에도 매우 역동적으로 움직이고 있음을 시사한다. SEM 및 입도분석을 토대로 볼 때, 사구사는 수중환경에서 쌓인 이후 바람에 의해 재운반되어 퇴적된 모래 입자의 특성과 잘 부합된다.

Luminescence dating of a coastal dune from the Shindu dunefield on the T'aean Peninsula shows that deposition of the dune structure began about 500-600 years ago. The lower section of the dune has remained stable since then but the upper part yields an age of about 30 years, suggesting reactivation or additional deposition since the 1970's. The two samples that were collected from the lower part of the dune at depths of 3.5 m and 2.0 m below the surface differ by an age interval of about 50-70 years. This indicates a net depositional rate of around 2.5 cm a year which is relatively slow for a coastal dune. Whilst only one dune structure has been dated for the time being and even though the dunefield was probably established much earlier in the Holocene, the OSL ages obtained demonstrate that some dunes in the area could be younger than 1000 years. Such chronologies point to a dynamic environment where the dune structures are not permanently fixed. Sedimentological properties of the dune sands are consistent with those of particles initially deposited under subaqueous conditions and then later transported by wind.

키워드

참고문헌

  1. Professional Papers of the US Geological Survey no.1052 Textural paramenters of eolian deposits, A Study of Global Sand Seas Ahlbrandt,T.S.;McKee,E.D.(ed.)
  2. Thermoluminescence Dating Aitken,M.J.
  3. An Introduction to Optical Dating Aitken,M.J.
  4. Nature v.202 Themoluminescent dating of ancient ceramics Aitken,M.J.;Tite,M.S.;Reed,J.
  5. Nature v.219 Thermoluminescent dating of ancient pottery Aitken,M.J.;Zimmerman,D.W.;Flemming,S.J. https://doi.org/10.1038/219442a0
  6. Geomorphology v.17 Patterns of sand transport on vegetated foredunces Arens,S.M. https://doi.org/10.1016/0169-555X(96)00016-5
  7. Journal of Coastal Research v.10 The Dutch foredunes: inventory and classification Arens,S.M.;Wiersma,J.
  8. Boundary layer Meteorology v.66 Intermittent wind close to the ground within a grass canopy Aylor,D.E.;Wang,Y.;Miller,D. https://doi.org/10.1007/BF00712732
  9. Quaternary Science Reviews v.22 Optical dating of young coastal dunes on a decadal time scale Ballarini,M.;Wallinga,J.;Murray,A.S.;Heteren,S.;Oost,A.P.;Bos,A.J.J.;Eijk,C.W.E. https://doi.org/10.1016/S0277-3791(03)00043-X
  10. Dating Methods for Quaternary Sediments Progress in luminescance dating methods for Quaternary sediments Berger,G.W.;Rutter,N.W.(ed.);Cato,N.R.(ed.)
  11. Quaternary Geochronology (Quaternary Science Reviews) v.13 Thermoluminescence dating of an arctic lake core from alaska Berger,G.W.;Anderson,P.M. https://doi.org/10.1016/0277-3791(94)90065-5
  12. Radiation Measurements v.27 Luminescence techniques: instrumentation and methods Butter-Jensen,L. https://doi.org/10.1016/S1350-4487(97)00206-0
  13. Coastal Environments Carter,R.W.G.
  14. Procedures in Sedimentary Petrography Carven,R.E.
  15. Geographical Variation in coastal Development Davies,J.L.
  16. Progress in Physical Geography v.20 Recent developments in luminescence dating of Quaternary Sediments Duller,G.A.T. https://doi.org/10.1177/030913339602000201
  17. Quaternary Geochronology (Quaternary Science Reviews) v.16 Themoluminescence ages and palaeoclimate from the lake Malata-Lake Greenly complex, Eyre Peninsula, south Australia Dutkiewicz,A.;Prescott,J.R. https://doi.org/10.1016/S0277-3791(97)89532-7
  18. Journal of Sedimentary Petrology v.27 Brazos River bar: a study in the significance of grain size paraments Folk,R.L.;Word,W.C. https://doi.org/10.1306/74D70646-2B21-11D7-8648000102C1865D
  19. Journal of Geophysical Research v.99 Assessing the accuracy of thermoluminescence for dating baked sediments beneath Late Quaternary lava flows, Snake River Plain, Idaho Forman,S.L.;Person,J.;Smith,R.P.;Hackett,W.R.;Valentine,G. https://doi.org/10.1029/94JB00806
  20. Canadian Journal of Earth Sciences v.34 Foredune development of Illes de la Madeleine(Quebec), Atlantic Canada Giles,P.T.;McCann,S.B.
  21. Coastal Sedimentary Environments Coastal dunes Goldsmith,V.;Davis,R.A.(ed.)
  22. Journal of Coastal Research Special Issue v.3 Surfzone, beach and foredune interactions on the Australian southeast Coast Hesp,P.A.;Psuty,N.P.(ed.)
  23. Handbook of Beach and Shoreface Morphodynamics The beach backshore and beyond Hesp,P.A.;Short,A.D.(ed.)
  24. Geomorphology v.48 Foredunes and blowouts: initiation, geomorphology and dynamics Hesp,P.A. https://doi.org/10.1016/S0169-555X(02)00184-8
  25. Nature v.313 Optical dating of Sediments Huntley,D.J.;Godfrey-Smith,D.I.;Thewalt,M.L.M. https://doi.org/10.1038/313105a0
  26. Sedimentology v.35 A sand budget for the Alexandria coastal dunefield, Algoa Bay, South Africa Illengerger,W.K.;Rust,I.C. https://doi.org/10.1111/j.1365-3091.1988.tb01001.x
  27. Journal of the Korean Geographical Society v.38 The origin of coastal dune sand in the Chungcheongnam-do Kahng,T.
  28. Nature v.283 Wind velocities determined from surface textures of sand grains Krinsley,D.;Wellendorf,W. https://doi.org/10.1038/283372a0
  29. Marine Geology v.2 Transportation of sand grains along the Atlantic shore of Long Island, New York: An Application of electron microscopy Krinsley,D.;Takahashi,T.;Silberman,M.;Newman,W. https://doi.org/10.1016/0025-3227(64)90029-5
  30. Geological Society of America Bulletin v.82 Submicroscopic frosting on eolian and sub- aqueous sand grains Margolis,S.V.;Krinsley,D.H. https://doi.org/10.1130/0016-7606(1971)82[3395:SFOEAS]2.0.CO;2
  31. American Jouranl of Science v.274 Processes of formation and environmental occurrence of microfeatures on detrital quartz grains Margolis,S.V.;Krinsley,D.H. https://doi.org/10.2475/ajs.274.5.449
  32. Clastic Particles. S.E.M. and Shape Analysis of Sedimentary and Volcanic Clasts Marshall,J.R.(ed.)
  33. Journal of Sedimentary Petrology v.56 The effects of eolian sorting and abrasion upon the shapes of fine quartz sand grains Mazzulo,J.;Sims,D.;Cunningham,D.
  34. Thermoluminescence Dosimetry Materials: Properties and Uses Mckeever,S.W.S.
  35. Archaeometry v.11 Thermolunescence dating of ancient Danish ceramics Mejdahl,V. https://doi.org/10.1111/j.1475-4754.1969.tb00632.x
  36. Radiation Measurements v.32 Luminescence dating of quartz using an improved single aliquot regenerative-dose protocol Murray,A.S.;Wintle,A.G. https://doi.org/10.1016/S1350-4487(99)00253-X
  37. Radiation Measurements v.37 The single aliquot regenerative dose protocol: potential for improvements in reliability Murray,A.S.;Wintle,A.G. https://doi.org/10.1016/S1350-4487(03)00053-2
  38. Canadian Journal of Earth Sciences v.34 Late Wisconsinan erosion and eolian deposition, Summer Island area, Plaeistocene mackenzie Delta, N.W.T.: optial dating and implications for glacial chronology Murton,J.B.;French,H.M.;Lamothe,M. https://doi.org/10.1139/e17-015
  39. Proceedings Symposium on Coastal Sand Dunes Aeolian sediment transport on beaches and coastal dunes Nickling,W.G.;Davidson-Arnott,R.G.D.
  40. Quaternary Science Reviews v.15 The effects of disequilibria in the uranium and thorium decay chains on burial dose rates in fluvial sediments Olley,J.M.;Murray,A.S.;Roberts,R.G. https://doi.org/10.1016/0277-3791(96)00026-1
  41. Journal of the Korean Geographical Society v.37 Detection of changes in coastal sand dunes using GIS technique and field monitoring Park,K.;Chang,E.
  42. Quanternary Science Reviews v.11 Attempts at dating ancient volcanoes using red TL of quartz Pilleyre,T.;Montret,M.;Fain,J.;Miallier,D.;Sanzelle,S. https://doi.org/10.1016/0277-3791(92)90036-8
  43. Radiation Measurements v.27 Sediment dating by luminescence Prescott,J.R.;Robertson,G.B. https://doi.org/10.1016/S1350-4487(97)00204-7
  44. Aeolian Sand and Sand Dunes Pye,K.;Tsoar,H.
  45. Seoul National Univ., Ph.D Thesis Morphological Changes and Sediment Budget of Coastal Dunefields in Shinduri Seo,J.C.
  46. Journal of Sedimentary Petrology v.42 Glacial microtextures on quartz and heavy mineral sand grains from the littoral environment Setlow,L.W.;Karpovich,R.P. https://doi.org/10.1306/74D7265D-2B21-11D7-8648000102C1865D
  47. Radiation Protection Dosimetry v.17 The optical dating of sediments using quartz Smith,B.W.;Rhodes,E.J.;Stokes,S.;Spooner,N.A.
  48. Quaternary Science Reviews v.11 Optical dating of young (modern) sediments using quartz: results from a selection of depositional environments Stokes,S. https://doi.org/10.1016/0277-3791(92)90057-F
  49. Geomorphology v.29 Luminescence dating applications in geomorphological research Stokes,S. https://doi.org/10.1016/S0169-555X(99)00012-4
  50. Marine Geology v.86 Analysis of barrier island and surface sediments by scanning electron microscopy Williams,A.T.;Thomas,M.C. https://doi.org/10.1016/0025-3227(89)90044-3
  51. The Dynamics and Environmental Context of Aeolian Sedimentary Systems v.72 Luminescence dating of Aeolian sands: an overview Wintle,A.G.;Pye,K.(ed.)
  52. Radiation Measurements v.27 Luminescence dating: Laboratory procedures and protocols Wintle,A.G. https://doi.org/10.1016/S1350-4487(97)00220-5
  53. Canadian Journal of Earth Science v.17 Thermoluminescence dating of ocean sediments Wintle,A.G.;Huntley,D.J. https://doi.org/10.1139/e80-034
  54. Archaeometry v.13 Thermoluminescence dating using fine grains from pottery Zimmerman,D.W. https://doi.org/10.1111/j.1475-4754.1971.tb00028.x